Siemens AG Launches SIRIUS 3RQ4 Relay for Sustainable Industrial Solutions
- Siemens launches the SIRIUS 3RQ4 coupling relay series, enhancing functionality and promoting sustainability in industrial applications.
- The relay's housing is made from 70% bio-based Akulon® K225-KS B-MB plastic, showcasing Siemens' eco-friendly manufacturing commitment.
- Siemens integrates innovative materials and collaborations to advance sustainability in its product portfolio and industrial automation solutions.

Siemens Unveils SIRIUS 3RQ4 Coupling Relay: A Step Towards Sustainable Industrial Solutions
Siemens Smart Infrastructure announces the launch of the SIRIUS 3RQ4 coupling relay series, a significant innovation tailored for various industrial applications. This product features three versatile variants designed to enhance functionality while promoting sustainability. A standout characteristic of the SIRIUS 3RQ4 is its housing, which is crafted from Akulon® K225-KS B-MB plastic, comprising 70% bio-based material derived from biomass waste, particularly used cooking oil (UCO). This material, developed in partnership with Envalior, not only provides exceptional heat and chemical resistance but also underscores Siemens' commitment to eco-friendly manufacturing practices.
The collaboration with Envalior is a crucial element in Siemens' strategy to integrate sustainable materials into its product line. CEO of Electrical Products at Siemens Smart Infrastructure, Andreas Matthé, emphasizes how this partnership represents a significant advancement in using recycled materials within engineering plastics. The UCO utilized in the SIRIUS 3RQ4 is not suitable for consumption, thus ensuring that it does not compete with food production and further enhances the sustainability of the product. This initiative aligns with the growing demand for responsible manufacturing practices in the industrial sector, where companies increasingly seek reliable solutions that also prioritize environmental responsibility.
The launch of the SIRIUS 3RQ4 coupling relay reflects Siemens' proactive approach to addressing the evolving needs of the market. By leveraging innovative materials and strategic collaborations, Siemens aims to enhance the sustainability of its product portfolio while contributing to a more sustainable future in industrial automation. The SIRIUS 3RQ4 not only meets the operational demands of contemporary industries but also serves as a benchmark for eco-conscious design, marrying efficiency with environmental stewardship.
In addition to its commitment to sustainability, Siemens continues to focus on developing solutions that integrate seamlessly with existing systems. The SIRIUS 3RQ4 coupling relay is designed to work harmoniously with Siemens controllers, reinforcing the company’s dedication to creating reliable and efficient industrial solutions. This alignment with technological advancements positions Siemens as a leader in the ongoing transition towards greener industrial practices.
As the industrial sector increasingly recognizes the importance of sustainability, Siemens' introduction of the SIRIUS 3RQ4 coupling relay marks a pivotal moment in the company's efforts to innovate responsibly. Through initiatives like this, Siemens not only fosters its reputation as a forward-thinking organization but also contributes significantly to the broader movement towards sustainable manufacturing solutions.